From our workshop to your procurement desk, I present Black high-low thread screws that combine reliable grip with cost-effective performance. These screws feature a black oxide finish for corrosion resistance and a high-low thread form that speeds installation in thin materials while preventing pull-out. In our catalog, you’ll find options that fit standard metric or imperial sizes, with tolerances kept tight for consistent assembly. We know you’re shopping with a budget, so I offer Cheap price points without compromising on strength or durability. Ask for our current Pricelist to compare diameters, pitches, and drive types, and I can tailor a batch to your production line. Whether you’re securing fasteners for sheet metal or plastic housings, these screws deliver steady, repeatable performance. I’m ready to quote, answer questions, and arrange samples to speed your project from order to install.
Black high-low thread screws are engineered for high performance in compact assemblies. The dual-thread design delivers fast seating and strong final clamping, providing reliable holding power and precise alignment. A black oxide finish reduces glare and enhances corrosion resistance, making them ideal for electronics, automotive, and consumer devices. As a trusted OEM partner, we offer design and process customization: thread pitches and lengths, head types and drive styles, materials (steel, stainless), and protective finishes. Our manufacturing scales with demand, ensuring consistent quality, predictable lead times, and global supply continuity. Quality control is built in through rigorous inspection and traceability: 100% dimensional checks, process monitoring, and first-article validation. With robust logistics and responsive after-sales support, you gain a dependable source for mission-critical assemblies worldwide.
| Specification | Variant A | Variant B | Variant C |
|---|---|---|---|
| Material | Carbon steel | Stainless steel A2-70 | Alloy steel |
| Finish / Coating | Black oxide | Black oxide | Black oxide |
| Head Type | Pan head | Countersunk | Hex socket cap |
| Drive Type | Phillips | Torx | Hex |
| Thread Type | High-Low | High-Low | High-Low |
| Length (mm) | 25 | 30 | 40 |
| Diameter / Major (mm) | M6 | M5 | M8 |
| Tensile Strength (MPa) | Approximately 800 | Approximately 700 | Approximately 950 |
| Operating Temperature (°C) | -40 to 120 | -60 to 250 | -40 to 150 |
| Compliance | ISO 898-1 Grade 8.8; RoHS | ISO 3506; RoHS | ISO 898-1 Grade 10.9; RoHS |